AS18781 AstraCore Ventures LLC

ASTRACORE-VENTURES - AstraCore Ventures LLC · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#12,952largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#60,202of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS18781 in ASN lookup Look up an IP in this network (23.133.76.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

23.133.76.0/24

IPv6 prefixes

All 1 prefix.

2602:f711::/40

Similar-sized networks in United States

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AS19537#12954 UPPER-ARLINGTON-SCHOOLS-OH - Upper Arlington City School District256

AS19692#12955 EMH - Ephraim McDowell Health, Inc.256

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources